[kolinko]

If you're curious about the subject, you might want to watch one of our (Orisi.org) tutorial videos: https://www.youtube.com/watch?v=boPW1FwNu4c . It's a part of a longer tutorial available here: https://github.com/orisi/orisi , and a part of the system described in this whitepaper: https://github.com/orisi/wiki/wiki/Orisi-White-Paper

As for your question - it really depends on the way the contract is structured. In theory you could have a 2 of 3 signature address and a timelocked/nLockTimed transaction sending money to an additional arbiter if the time passes without a resolution.